--mysql
-- 设置自增ID从N开始
CREATE TABLE empautoinc(
ID INT  PRIMARY KEY AUTO_INCREMENT
) AUTO_INCREMENT = 100 ; --（设置自增ID从100开始）

insert into empautoinc(id) values(null);
Query OK, 1 row affected (0.00 sec)

mysql> select * from empautoinc;
+-----+
| ID |
+-----+
| 100 |
+-----+
1 row in set (0.00 sec)

show table status like 'empautoinc'\G;
*************************** 1. row ***************************
Name: empautoinc
Engine: InnoDB
Version: 10
Row_format: Compact
Rows: 1
Avg_row_length: 16384
Data_length: 16384
Max_data_length: 0
Index_length: 0
Data_free: 0
Auto_increment: 101
Create_time: 2016-10-27 01:50:32
Update_time: NULL
Check_time: NULL
Collation: utf8_general_ci
Checksum: NULL
Create_options:
Comment:
1 row in set (0.00 sec)